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<div class="title">opennurbs_3dm_attributes.h</div>  </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* $NoKeywords: $ */</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// Copyright (c) 1993-2012 Robert McNeel &amp; Associates. All rights reserved.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">// McNeel &amp; Associates.</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">// THIS SOFTWARE IS PROVIDED &quot;AS IS&quot; WITHOUT EXPRESS OR IMPLIED WARRANTY.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">// ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE AND OF</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">// MERCHANTABILITY ARE HEREBY DISCLAIMED.</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">//              </span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">// For complete openNURBS copyright information see &lt;http://www.opennurbs.org&gt;.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160; </div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment">//   defines ON_3dmObjectAttributes</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#if !defined(OPENNURBS_3DM_ATTRIBUTES_INC_)</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#define OPENNURBS_3DM_ATTRIBUTES_INC_</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160; </div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160; </div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment">Description: </span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment">  Top level OpenNURBS objects have geometry and attributes.  The</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment">  geometry is stored in some class derived from ON_Geometry and </span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment">  the attributes are stored in an ON_3dmObjectAttributes class.</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment">  Examples of attributes are object name, object id, display </span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment">  attributes, group membership, layer membership, and so on.</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment">Remarks:</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="comment">  7 January 2003 Dale Lear</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="comment">    Derived from ON_Object so ON_UserData can be attached</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="comment">    to ON_3dmObjectAttributes.</span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160; </div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="class_o_n__3dm_object_attributes.html">   41</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a> : <span class="keyword">public</span> <a class="code" href="class_o_n___object.html">ON_Object</a></div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;{</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;  ON_OBJECT_DECLARE(<a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>);</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160; </div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;  <span class="comment">// ON_Object virtual interface.  See ON_Object</span></div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;  <span class="comment">// for details.</span></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160; </div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;  <span class="comment">// virtual</span></div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;  ON_BOOL32 IsValid( <a class="code" href="class_o_n___text_log.html">ON_TextLog</a>* text_log = NULL ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;  <span class="comment">// virtual</span></div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;  <span class="keywordtype">void</span> Dump( <a class="code" href="class_o_n___text_log.html">ON_TextLog</a>&amp; ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;  <span class="comment">// virtual</span></div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> SizeOf() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;  <span class="comment">// virtual</span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;  ON_BOOL32 Write(<a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp;) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;  <span class="comment">// virtual</span></div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;  ON_BOOL32 Read(<a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp;);</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160; </div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="comment">    True if successful.</span></div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="comment">    (xform is invertable or didn&#39;t need to be).</span></div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;  <span class="keywordtype">bool</span> Transform( <span class="keyword">const</span> <a class="code" href="class_o_n___xform.html">ON_Xform</a>&amp; xform );</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160; </div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;  <span class="comment">// attributes of geometry and dimension table objects</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;  <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>();</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;  ~<a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>();</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160; </div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  <span class="comment">// Default C++ copy constructor and operator= work fine</span></div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;  <span class="comment">// Do not provide custom versions</span></div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;  <span class="comment">// NO // ON_3dmObjectAttributes(const ON_3dmObjectAttributes&amp;);</span></div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;  <span class="comment">// NO // ON_3dmObjectAttributes&amp; operator=(const ON_3dmObjectAttributes&amp;);</span></div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160; </div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;  <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>&amp;) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;  <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>&amp;) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160; </div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;  <span class="comment">// Initializes all attributes to the default values.</span></div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;  <span class="keywordtype">void</span> Default();</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160; </div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;  <span class="comment">// Interface ////////////////////////////////////////////////////////</span></div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160; </div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;  <span class="comment">// An OpenNURBS object must be in one of three modes: normal, locked</span></div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;  <span class="comment">// or hidden.  If an object is in normal mode, then the object&#39;s layer</span></div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;  <span class="comment">// controls visibility and selectability.  If an object is locked, then</span></div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;  <span class="comment">// the object&#39;s layer controls visibility by the object cannot be selected.</span></div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;  <span class="comment">// If the object is hidden, it is not visible and it cannot be selected.</span></div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;  ON::object_mode Mode() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;  <span class="keywordtype">void</span> SetMode( ON::object_mode ); <span class="comment">// See Mode().</span></div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160; </div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="comment">    Use this query to determine if an object is part of an </span></div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="comment">    instance definition.</span></div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;<span class="comment">    True if the object is part of an instance definition.</span></div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;  <span class="keywordtype">bool</span> IsInstanceDefinitionObject() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160; </div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="comment">    Returns true if object is visible.</span></div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="comment">  See Also:</span></div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="comment">    ON_3dmObjectAttributes::SetVisible</span></div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;  <span class="keywordtype">bool</span> IsVisible() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160; </div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;<span class="comment">    Controls object visibility</span></div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<span class="comment">    bVisible - [in] true to make object visible, </span></div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;<span class="comment">                    false to make object invisible</span></div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="comment">  See Also:</span></div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;<span class="comment">    ON_3dmObjectAttributes::IsVisible</span></div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;  <span class="keywordtype">void</span> SetVisible( <span class="keywordtype">bool</span> bVisible );</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160; </div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;  <span class="comment">// The Linetype used to display an OpenNURBS object is specified in one of two ways.</span></div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;  <span class="comment">// If LinetypeSource() is ON::linetype_from_layer, then the object&#39;s layer </span></div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;  <span class="comment">// ON_Layer::Linetype() is used.</span></div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;  <span class="comment">// If LinetypeSource() is ON::linetype_from_object, then value of m_linetype is used.</span></div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;  ON::object_linetype_source LinetypeSource() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;  <span class="keywordtype">void</span> SetLinetypeSource( ON::object_linetype_source ); <span class="comment">// See LinetypeSource().</span></div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160; </div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;  <span class="comment">// The color used to display an OpenNURBS object is specified in one of three ways.</span></div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;  <span class="comment">// If ColorSource() is ON::color_from_layer, then the object&#39;s layer </span></div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;  <span class="comment">// ON_Layer::Color() is used.</span></div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;  <span class="comment">// If ColorSource() is ON::color_from_object, then value of m_color is used.</span></div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;  <span class="comment">// If ColorSource() is ON::color_from_material, then the diffuse color of the object&#39;s</span></div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;  <span class="comment">// render material is used.  See ON_3dmObjectAttributes::MaterialSource() to</span></div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;  <span class="comment">// determine where to get the definition of the object&#39;s render material.</span></div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;  ON::object_color_source ColorSource() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;  <span class="keywordtype">void</span> SetColorSource( ON::object_color_source ); <span class="comment">// See ColorSource().</span></div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160; </div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;  <span class="comment">// The color used to plot an OpenNURBS object on paper is specified </span></div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;  <span class="comment">// in one of three ways.</span></div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;  <span class="comment">// If PlotColorSource() is ON::plot_color_from_layer, then the object&#39;s layer </span></div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;  <span class="comment">// ON_Layer::PlotColor() is used.</span></div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;  <span class="comment">// If PlotColorSource() is ON::plot_color_from_object, then value of PlotColor() is used.</span></div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;  ON::plot_color_source PlotColorSource() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;  <span class="keywordtype">void</span> SetPlotColorSource( ON::plot_color_source ); <span class="comment">// See PlotColorSource().</span></div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160; </div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;  ON::plot_weight_source PlotWeightSource() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;  <span class="keywordtype">void</span> SetPlotWeightSource( ON::plot_weight_source );</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160; </div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160; </div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;  <span class="comment">// OpenNURBS objects can be displayed in one of three ways: wireframe,</span></div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;  <span class="comment">// shaded, or render preview.  If the display mode is ON::default_display,</span></div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;  <span class="comment">// then the display mode of the viewport detrmines how the object</span></div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;  <span class="comment">// is displayed.  If the display mode is ON::wireframe_display,</span></div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;  <span class="comment">// ON::shaded_display, or ON::renderpreview_display, then the object is</span></div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;  <span class="comment">// forced to display in that mode.</span></div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;  ON::display_mode DisplayMode() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;  <span class="keywordtype">void</span> SetDisplayMode( ON::display_mode  ); <span class="comment">// See DisplayMode().</span></div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160; </div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;<span class="comment">    If &quot;this&quot; has attributes (color, plot weight, ...) with </span></div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;<span class="comment">    &quot;by parent&quot; sources, then the values of those attributes </span></div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="comment">    on parent_attributes are copied.</span></div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;<span class="comment">    parent_attributes - [in]</span></div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;<span class="comment">    parent_layer - [in]</span></div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;<span class="comment">    control_limits - [in]</span></div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;<span class="comment">      The bits in control_limits determine which attributes may</span></div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;<span class="comment">      may be copied.</span></div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;<span class="comment">                1: visibility</span></div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;<span class="comment">                2: color</span></div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;<span class="comment">                4: render material</span></div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;<span class="comment">                8: plot color</span></div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;<span class="comment">            0x10: plot weight</span></div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;<span class="comment">            0x20: linetype</span></div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;<span class="comment">            0x40: display order</span></div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;<span class="comment">     The bits in the returned integer indicate which attributes were</span></div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;<span class="comment">     actually modified.</span></div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;<span class="comment">                1: visibility</span></div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;<span class="comment">                2: color</span></div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;<span class="comment">                4: render material</span></div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;<span class="comment">                8: plot color</span></div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;<span class="comment">            0x10: plot weight</span></div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;<span class="comment">            0x20: linetype</span></div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;<span class="comment">            0x40: display order</span></div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;  ON_DEPRECATED <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ApplyParentalControl( </div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;         <span class="keyword">const</span> <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>&amp; parent_attributes,</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> control_limits = 0xFFFFFFFF</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;         );</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160; </div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ApplyParentalControl( </div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;         <span class="keyword">const</span> <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>&amp; parent_attributes,</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;         <span class="keyword">const</span> <a class="code" href="class_o_n___layer.html">ON_Layer</a>&amp; parent_layer,</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> control_limits = 0xFFFFFFFF</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;         );</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160; </div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;  <span class="comment">// Every OpenNURBS object has a UUID (universally unique identifier).  The</span></div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;  <span class="comment">// default value is NULL.  When an OpenNURBS object is added to a model, the</span></div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;  <span class="comment">// value is checked.  If the value is NULL, a new UUID is created.  If the</span></div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;  <span class="comment">// value is not NULL but it is already used by another object in the model,</span></div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;  <span class="comment">// a new UUID is created.  If the value is not NULL and it is not used by </span></div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;  <span class="comment">// another object in the model, then that value persists. When an object</span></div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;  <span class="comment">// is updated, by a move for example, the value of m_uuid persists.</span></div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;  <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a> m_uuid;</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160; </div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;  <span class="comment">// OpenNURBS object have optional text names.  More than one object in</span></div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;  <span class="comment">// a model can have the same name and some objects may have no name.</span></div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;  <a class="code" href="class_o_n__w_string.html">ON_wString</a> m_name;</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160; </div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;  <span class="comment">// OpenNURBS objects may have an URL.  There are no restrictions on what</span></div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;  <span class="comment">// value this URL may have.  As an example, if the object came from a</span></div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;  <span class="comment">// commercial part library, the URL might point to the definition of that</span></div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;  <span class="comment">// part.</span></div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;  <a class="code" href="class_o_n__w_string.html">ON_wString</a> m_url;</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160; </div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;  <span class="comment">// Layer definitions in an OpenNURBS model are stored in a layer table.</span></div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;  <span class="comment">// The layer table is conceptually an array of ON_Layer classes.  Every</span></div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;  <span class="comment">// OpenNURBS object in a model is on some layer.  The object&#39;s layer</span></div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;  <span class="comment">// is specified by zero based indicies into the ON_Layer array.</span></div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;  <span class="keywordtype">int</span> m_layer_index;</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160; </div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;  <span class="comment">// Linetype definitions in an OpenNURBS model are stored in a linetype table.</span></div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;  <span class="comment">// The linetype table is conceptually an array of ON_Linetype classes.  Every</span></div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;  <span class="comment">// OpenNURBS object in a model references some linetype.  The object&#39;s linetype</span></div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;  <span class="comment">// is specified by zero based indicies into the ON_Linetype array.</span></div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;  <span class="comment">// index 0 is reserved for continuous linetype (no pattern)</span></div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;  <span class="keywordtype">int</span> m_linetype_index;</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160; </div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;  <span class="comment">// Rendering material:</span></div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;  <span class="comment">//   If you want something simple and fast, set </span></div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;  <span class="comment">//   m_material_index to the index of the rendering material </span></div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;  <span class="comment">//   and ignore m_rendering_attributes.</span></div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;  <span class="comment">//   If you are developing a high quality plug-in renderer, </span></div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;  <span class="comment">//   and a user is assigning one of your fabulous rendering </span></div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;  <span class="comment">//   materials to this object, then add rendering material </span></div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;  <span class="comment">//   information to the  m_rendering_attributes.m_materials[] </span></div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;  <span class="comment">//   array. </span></div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;  <span class="comment">// Developers:</span></div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;  <span class="comment">//   As soon as m_rendering_attributes.m_materials[] is not empty,</span></div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;  <span class="comment">//   rendering material queries slow down.  Do not populate</span></div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;  <span class="comment">//   m_rendering_attributes.m_materials[] when setting </span></div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;  <span class="comment">//   m_material_index will take care of your needs.</span></div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;  <span class="keywordtype">int</span> m_material_index;</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;  <a class="code" href="class_o_n___object_rendering_attributes.html">ON_ObjectRenderingAttributes</a> m_rendering_attributes;</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160; </div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;  <span class="comment">// BEGIN: Per object mesh parameter support</span></div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160; </div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;<span class="comment">    mp - [in]</span></div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;<span class="comment">      per object mesh parameters</span></div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;<span class="comment">    True if successful.</span></div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;  <span class="keywordtype">bool</span> SetCustomRenderMeshParameters(<span class="keyword">const</span> <span class="keyword">class</span> <a class="code" href="class_o_n___mesh_parameters.html">ON_MeshParameters</a>&amp; mp);</div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160; </div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;<span class="comment">    bEnable - [in]</span></div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;<span class="comment">      true to enable use of the per object mesh parameters.</span></div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;<span class="comment">      false to disable use of the per object mesh parameters.</span></div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;<span class="comment">    False if the object doe not have per object mesh parameters</span></div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;<span class="comment">    and bEnable was true.  Use SetMeshParameters() to set</span></div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;<span class="comment">    per object mesh parameters.</span></div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;<span class="comment">    Sets the value of ON_MeshParameters::m_bCustomSettingsDisabled </span></div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;<span class="comment">    to !bEnable</span></div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;  <span class="keywordtype">bool</span> EnableCustomRenderMeshParameters(<span class="keywordtype">bool</span> bEnable);</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160; </div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;<span class="comment">    Null or a pointer to fragile mesh parameters.</span></div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;<span class="comment">    If a non-null pointer is returned, copy it and use the copy.</span></div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;<span class="comment">    * DO NOT SAVE THIS POINTER FOR LATER USE. A call to </span></div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;<span class="comment">      DeleteMeshParameters() will delete the class.</span></div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;<span class="comment">    * DO NOT const_cast the returned pointer and change its</span></div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;<span class="comment">      settings.  You must use either SetMeshParameters()</span></div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;<span class="comment">      or EnableMeshParameters() to change settings.</span></div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;<span class="comment">    If the value of ON_MeshParameters::m_bCustomSettingsDisabled is</span></div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;<span class="comment">    true, then do no use these parameters to make a render mesh.</span></div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;  <span class="keyword">const</span> <a class="code" href="class_o_n___mesh_parameters.html">ON_MeshParameters</a>* CustomRenderMeshParameters() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160; </div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;<span class="comment">    Deletes any per object mesh parameters.</span></div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;  <span class="keywordtype">void</span> DeleteCustomRenderMeshParameters();</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160; </div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;  <span class="comment">// END: Per object mesh parameter support</span></div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160; </div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;<span class="comment">    Determine if the simple material should come from</span></div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;<span class="comment">    the object or from it&#39;s layer.</span></div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;<span class="comment">    High quality rendering plug-ins should use m_rendering_attributes.</span></div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;<span class="comment">    Where to get material information if you do are too lazy</span></div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;<span class="comment">    to look in m_rendering_attributes.m_materials[].</span></div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;  ON::object_material_source MaterialSource() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160; </div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;<span class="comment">    Specifies if the simple material should be the one</span></div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;<span class="comment">    indicated by the material index or the one indicated</span></div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;<span class="comment">    by the object&#39;s layer.</span></div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;<span class="comment">    ms - [in]</span></div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;  <span class="keywordtype">void</span> SetMaterialSource( ON::object_material_source ms );</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160; </div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;  <span class="comment">// If ON::color_from_object == ColorSource(), then m_color is the object&#39;s</span></div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;  <span class="comment">// display color.</span></div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;  <a class="code" href="class_o_n___color.html">ON_Color</a>      m_color;</div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160; </div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;  <span class="comment">// If ON::plot_color_from_object == PlotColorSource(), then m_color is the object&#39;s</span></div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;  <span class="comment">// display color.</span></div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;  <a class="code" href="class_o_n___color.html">ON_Color</a>      m_plot_color;</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160; </div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;  <span class="comment">// Display order used to force objects to be drawn on top or behind each other</span></div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;  <span class="comment">// 0  = draw object in standard depth buffered order</span></div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;  <span class="comment">// &lt;0 = draw object behind &quot;normal&quot; draw order objects</span></div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;  <span class="comment">// &gt;0 = draw object on top of &quot;noraml&quot; draw order objects</span></div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;  <span class="comment">// Larger number draws on top of smaller number.</span></div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;  <span class="keywordtype">int</span> m_display_order;</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160; </div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;  <span class="comment">// Plot weight in millimeters.</span></div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;  <span class="comment">//   =0.0 means use the default width</span></div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;  <span class="comment">//   &lt;0.0 means don&#39;t plot (visible for screen display, but does not show on plot)</span></div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;  <span class="keywordtype">double</span> m_plot_weight_mm;</div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160; </div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;  <span class="comment">// Used to indicate an object has a decoration (like an arrowhead on a curve)</span></div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;  ON::object_decoration  m_object_decoration;</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160; </div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;  <span class="comment">// When a surface object is displayed in wireframe, m_wire_density controls</span></div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;  <span class="comment">// how many isoparametric wires are used.</span></div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;  <span class="comment">//   @table</span></div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;  <span class="comment">//   value    number of isoparametric wires</span></div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;  <span class="comment">//   -1       boundary wires</span></div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;  <span class="comment">//    0       boundary and knot wires </span></div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;  <span class="comment">//    1       boundary and knot wires and, if there are no</span></div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;  <span class="comment">//            interior knots, a single interior wire.</span></div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;  <span class="comment">//   N&gt;=2     boundary and knot wires and (N-1) interior wires</span></div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;  <span class="keywordtype">int</span> m_wire_density;</div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160; </div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160; </div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;  <span class="comment">// If m_viewport_id is nil, the object is active in</span></div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;  <span class="comment">// all viewports. If m_viewport_id is not nil, then </span></div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;  <span class="comment">// this object is only active in a specific view.  </span></div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;  <span class="comment">// This field is primarily used to assign page space</span></div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;  <span class="comment">// objects to a specific page, but it can also be used </span></div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;  <span class="comment">// to restrict model space to a specific view.</span></div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;  <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a> m_viewport_id;</div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160; </div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;  <span class="comment">// Starting with V4, objects can be in either model space</span></div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;  <span class="comment">// or page space.  If an object is in page space, then</span></div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;  <span class="comment">// m_viewport_id is not nil and identifies the page it </span></div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;  <span class="comment">// is on.</span></div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;  ON::active_space m_space;</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160; </div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;  <span class="keywordtype">bool</span> m_bVisible;</div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> m_mode;               <span class="comment">// (m_mode % 16) = ON::object_mode values</span></div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;                                      <span class="comment">// (m_mode / 16) = ON::display_mode values</span></div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> m_color_source;       <span class="comment">// ON::object_color_source values</span></div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> m_plot_color_source;  <span class="comment">// ON::plot_color_source values</span></div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> m_plot_weight_source; <span class="comment">// ON::plot_weight_source values</span></div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> m_material_source;    <span class="comment">// ON::object_material_source values</span></div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> m_linetype_source;    <span class="comment">// ON::object_linetype_source values</span></div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;  </div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> m_reserved_0;</div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;  </div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;  <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;int&gt;</a> m_group; <span class="comment">// array of zero based group indices</span></div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160; </div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;  <span class="comment">// group interface</span></div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160; </div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;  <span class="comment">// returns number of groups object belongs to</span></div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;  <span class="keywordtype">int</span> GroupCount() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160; </div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;  <span class="comment">// Returns and array an array of GroupCount() zero based </span></div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;  <span class="comment">// group indices.  If GroupCount() is zero, then GroupList()</span></div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;  <span class="comment">// returns NULL.</span></div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">int</span>* GroupList() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160; </div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;  <span class="comment">// Returns GroupCount() and puts a list of zero based group indices </span></div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;  <span class="comment">// into the array.</span></div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;  <span class="keywordtype">int</span> GetGroupList(<a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;int&gt;</a>&amp;) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160; </div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;  <span class="comment">// Returns the index of the last group in the group list</span></div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;  <span class="comment">// or -1 if the object is not in any groups</span></div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;  <span class="keywordtype">int</span> TopGroup() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160; </div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;  <span class="comment">// Returns true if object is in group with the specified index</span></div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;  ON_BOOL32 IsInGroup(</div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;    <span class="keywordtype">int</span> <span class="comment">// zero based group index</span></div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;    ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160; </div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;  <span class="comment">// Returns true if the object is in any of the groups in the list</span></div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;  ON_BOOL32 IsInGroups(</div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;    <span class="keywordtype">int</span>,       <span class="comment">// group_list_count</span></div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span>* <span class="comment">// group_list[] array</span></div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;    ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160; </div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;  <span class="comment">// Returns true if object is in any of the groups in the list</span></div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;  ON_BOOL32 IsInGroups(</div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;int&gt;</a>&amp; <span class="comment">// group_list[] array</span></div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;    ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160; </div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;  <span class="comment">// Adds object to the group with specified index by appending index to</span></div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;  <span class="comment">// group list (If the object is already in group, nothing is changed.)</span></div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;  <span class="keywordtype">void</span> AddToGroup(</div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;    <span class="keywordtype">int</span> <span class="comment">// zero based group index</span></div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;    );</div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160; </div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;  <span class="comment">// Removes object from the group with specified index.  If the </span></div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;  <span class="comment">// object is not in the group, nothing is changed.</span></div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;  <span class="keywordtype">void</span> RemoveFromGroup(</div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;    <span class="keywordtype">int</span> <span class="comment">// zero based group index</span></div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;    );</div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160; </div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;  <span class="comment">// removes the object from the last group in the group list</span></div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;  <span class="keywordtype">void</span> RemoveFromTopGroup();</div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160; </div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;  <span class="comment">// Removes object from all groups.</span></div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;  <span class="keywordtype">void</span> RemoveFromAllGroups();</div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160; </div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160; </div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;  <span class="comment">// display material references</span></div>
<div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160; </div>
<div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;<span class="comment">    Searches for a matching display material.  For a given</span></div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;<span class="comment">    viewport id, there is at most one display material.</span></div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;<span class="comment">    For a given display material id, there can be multiple</span></div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;<span class="comment">    viewports.  If there is a display reference in the</span></div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;<span class="comment">    list with a nil viewport id, then the display material</span></div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;<span class="comment">    will be used in all viewports that are not explictly</span></div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;<span class="comment">    referenced in other ON_DisplayMaterialRefs.</span></div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;<span class="comment">    search_material - [in] </span></div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;<span class="comment">    found_material - [out]</span></div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;<span class="comment">    </span></div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;<span class="comment">    If FindDisplayMaterialRef(), the input value of search_material</span></div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;<span class="comment">    is never changed.  If FindDisplayMaterialRef() returns true, </span></div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;<span class="comment">    the chart shows the output value of display_material.  When</span></div>
<div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;<span class="comment">    there are multiple possibilities for a match, the matches</span></div>
<div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;<span class="comment">    at the top of the chart have higher priority.</span></div>
<div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;<span class="comment">    search_material  found_material</span></div>
<div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;<span class="comment">    input value      output value</span></div>
<div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;<span class="comment">    (nil,nil)        (nil,did) if (nil,did) is in the list.</span></div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;<span class="comment">    (nil,did)        (vid,did) if (vid,did) is in the list.</span></div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;<span class="comment">    (nil,did)        (nil,did) if (nil,did) is in the list.</span></div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;<span class="comment">    (vid,nil)        (vid,did) if (vid,did) is in the list</span></div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;<span class="comment">    (vid,nil)        (vid,did) if (nil,did) is in the list</span></div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;<span class="comment">    (vid,did)        (vid,did) if (vid,did) is in the list.</span></div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;<span class="comment">  Example:</span></div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;<span class="comment">    ON_UUID display_material_id = ON_nil_uuid;</span></div>
<div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;<span class="comment">    ON_Viewport vp = ...;</span></div>
<div class="line"><a name="l00481"></a><span class="lineno">  481</span>&#160;<span class="comment">    ON_DisplayMaterialRef search_dm;</span></div>
<div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;<span class="comment">    search_dm.m_viewport_id = vp.ViewportId();</span></div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;<span class="comment">    ON_DisplayMaterialRef found_dm;</span></div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;<span class="comment">    if ( attributes.FindDisplayMaterial(search_dm, &amp;found_dm) )</span></div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;<span class="comment">    {</span></div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;<span class="comment">      display_material_id = found_dm.m_display_material_id;</span></div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;<span class="comment">    }</span></div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;<span class="comment">    True if a matching display material is found.</span></div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;<span class="comment">  See Also:</span></div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;<span class="comment">    ON_3dmObjectAttributes::AddDisplayMaterialRef</span></div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;<span class="comment">    ON_3dmObjectAttributes::RemoveDisplayMaterialRef</span></div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;  <span class="keywordtype">bool</span> FindDisplayMaterialRef(</div>
<div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;      <span class="keyword">const</span> <a class="code" href="class_o_n___display_material_ref.html">ON_DisplayMaterialRef</a>&amp; search_material,</div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;      <a class="code" href="class_o_n___display_material_ref.html">ON_DisplayMaterialRef</a>* found_material = NULL</div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;    ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160; </div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160;<span class="comment">    Quick way to see if a viewport has a special material.</span></div>
<div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;<span class="comment">    viewport_id - [in]</span></div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;<span class="comment">    display_material_id - [out]</span></div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160;<span class="comment">    True if a material_id is assigned.</span></div>
<div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;  <span class="keywordtype">bool</span> FindDisplayMaterialId( </div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;        <span class="keyword">const</span> <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a>&amp; viewport_id, </div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;        <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a>* display_material_id = NULL</div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160;        ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;     </div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160;<span class="comment">    Add a display material reference to the attributes.  If</span></div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;<span class="comment">    there is an existing entry with a matching viewport id,</span></div>
<div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;<span class="comment">    the existing entry is replaced.</span></div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;<span class="comment">    display_material - [in]</span></div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;<span class="comment">    True if input is valid (material id != nil)</span></div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;<span class="comment">  See Also:</span></div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;<span class="comment">    ON_3dmObjectAttributes::FindDisplayMaterialRef</span></div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;<span class="comment">    ON_3dmObjectAttributes::RemoveDisplayMaterialRef</span></div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;  <span class="keywordtype">bool</span> AddDisplayMaterialRef(</div>
<div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160;    <a class="code" href="class_o_n___display_material_ref.html">ON_DisplayMaterialRef</a> display_material</div>
<div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;    );</div>
<div class="line"><a name="l00530"></a><span class="lineno">  530</span>&#160; </div>
<div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00532"></a><span class="lineno">  532</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160;<span class="comment">    Remove a display material reference from the list.</span></div>
<div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00535"></a><span class="lineno">  535</span>&#160;<span class="comment">    viewport_id - [in] Any display material references</span></div>
<div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;<span class="comment">      with this viewport id will be removed.  If nil,</span></div>
<div class="line"><a name="l00537"></a><span class="lineno">  537</span>&#160;<span class="comment">      then viewport_id is ignored.</span></div>
<div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160;<span class="comment">    display_material_id - [in]</span></div>
<div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;<span class="comment">      Any display material references that match the</span></div>
<div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160;<span class="comment">      viewport_id and have this display_material_id</span></div>
<div class="line"><a name="l00541"></a><span class="lineno">  541</span>&#160;<span class="comment">      will be removed.  If nil, then display_material_id</span></div>
<div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;<span class="comment">      is ignored.</span></div>
<div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;<span class="comment">    True if a display material reference was removed.</span></div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;<span class="comment">  See Also:</span></div>
<div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;<span class="comment">    ON_3dmObjectAttributes::FindDisplayMaterialRef</span></div>
<div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;<span class="comment">    ON_3dmObjectAttributes::AddDisplayMaterialRef</span></div>
<div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;  <span class="keywordtype">bool</span> RemoveDisplayMaterialRef(</div>
<div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;    <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a> viewport_id,</div>
<div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160;    <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a> display_material_id = ON_nil_uuid</div>
<div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160;    );</div>
<div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160; </div>
<div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00555"></a><span class="lineno">  555</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00556"></a><span class="lineno">  556</span>&#160;<span class="comment">    Remove a the entire display material reference list.</span></div>
<div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00558"></a><span class="lineno">  558</span>&#160;  <span class="keywordtype">void</span> RemoveAllDisplayMaterialRefs();</div>
<div class="line"><a name="l00559"></a><span class="lineno">  559</span>&#160; </div>
<div class="line"><a name="l00560"></a><span class="lineno">  560</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00561"></a><span class="lineno">  561</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00562"></a><span class="lineno">  562</span>&#160;<span class="comment">    Number of diplay material refences.</span></div>
<div class="line"><a name="l00563"></a><span class="lineno">  563</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00564"></a><span class="lineno">  564</span>&#160;  <span class="keywordtype">int</span> DisplayMaterialRefCount() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00565"></a><span class="lineno">  565</span>&#160; </div>
<div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;  <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_DisplayMaterialRef&gt;</a> m_dmref;</div>
<div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160; </div>
<div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;  <span class="keywordtype">bool</span> WriteV5Helper( <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; file ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;  <span class="keywordtype">bool</span> ReadV5Helper( <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; file );</div>
<div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;};</div>
<div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160; </div>
<div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclass_o_n__3dm_object_attributes_html"><div class="ttname"><a href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a></div><div class="ttdef"><b>Definition:</b> opennurbs_3dm_attributes.h:42</div></div>
<div class="ttc" id="aclass_o_n___binary_archive_html"><div class="ttname"><a href="class_o_n___binary_archive.html">ON_BinaryArchive</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:732</div></div>
<div class="ttc" id="aclass_o_n___color_html"><div class="ttname"><a href="class_o_n___color.html">ON_Color</a></div><div class="ttdef"><b>Definition:</b> opennurbs_color.h:25</div></div>
<div class="ttc" id="aclass_o_n___display_material_ref_html"><div class="ttname"><a href="class_o_n___display_material_ref.html">ON_DisplayMaterialRef</a></div><div class="ttdef"><b>Definition:</b> opennurbs_linestyle.h:44</div></div>
<div class="ttc" id="aclass_o_n___layer_html"><div class="ttname"><a href="class_o_n___layer.html">ON_Layer</a></div><div class="ttdef"><b>Definition:</b> opennurbs_layer.h:21</div></div>
<div class="ttc" id="aclass_o_n___mesh_parameters_html"><div class="ttname"><a href="class_o_n___mesh_parameters.html">ON_MeshParameters</a></div><div class="ttdef"><b>Definition:</b> opennurbs_mesh.h:25</div></div>
<div class="ttc" id="aclass_o_n___object_html"><div class="ttname"><a href="class_o_n___object.html">ON_Object</a></div><div class="ttdef"><b>Definition:</b> opennurbs_object.h:377</div></div>
<div class="ttc" id="aclass_o_n___object_rendering_attributes_html"><div class="ttname"><a href="class_o_n___object_rendering_attributes.html">ON_ObjectRenderingAttributes</a></div><div class="ttdef"><b>Definition:</b> opennurbs_rendering.h:39</div></div>
<div class="ttc" id="aclass_o_n___simple_array_html"><div class="ttname"><a href="class_o_n___simple_array.html">ON_SimpleArray&lt; int &gt;</a></div></div>
<div class="ttc" id="aclass_o_n___text_log_html"><div class="ttname"><a href="class_o_n___text_log.html">ON_TextLog</a></div><div class="ttdef"><b>Definition:</b> opennurbs_textlog.h:23</div></div>
<div class="ttc" id="aclass_o_n___u_u_i_d_html"><div class="ttname"><a href="class_o_n___u_u_i_d.html">ON_UUID</a></div><div class="ttdef"><b>Definition:</b> opennurbs_uuid.h:32</div></div>
<div class="ttc" id="aclass_o_n___xform_html"><div class="ttname"><a href="class_o_n___xform.html">ON_Xform</a></div><div class="ttdef"><b>Definition:</b> opennurbs_xform.h:29</div></div>
<div class="ttc" id="aclass_o_n__w_string_html"><div class="ttname"><a href="class_o_n__w_string.html">ON_wString</a></div><div class="ttdef"><b>Definition:</b> opennurbs_string.h:701</div></div>
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